powerpc/83xx: move km 83xx specific i2c code to km83xx_i2c

The common code should be valid for more than one architecture.
Therefore this code was reorganized and moved to the new
file km83xx_i2c.c

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

2 files changed, 9 insertions, 65 deletions

diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 612dd2a..f262306 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -39,7 +39,10 @@
 #include <i2c.h>
 #endif
 
+#if !defined(CONFIG_MPC83xx)
 static void i2c_write_start_seq(void);
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 /*
@@ -89,9 +92,7 @@ int set_km_env(void)
 	return 0;
 }
 
-#define DELAY_ABORT_SEQ		62  /* @200kHz 9 clocks = 44us, 62us is ok */
-#define DELAY_HALF_PERIOD	(500 / (CONFIG_SYS_I2C_SPEED / 1000))
-
+#if defined(CONFIG_SYS_I2C_INIT_BOARD)
 #if !defined(CONFIG_MPC83xx)
 static void i2c_write_start_seq(void)
 {
@@ -171,68 +172,6 @@ int i2c_make_abort(void)
 #endif
 	return ret;
 }
-#endif /* !MPC83xx */
-
-#if defined(CONFIG_MPC83xx)
-static void i2c_write_start_seq(void)
-{
-	struct fsl_i2c *dev;
-	dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
-	udelay(DELAY_ABORT_SEQ);
-	out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
-	udelay(DELAY_ABORT_SEQ);
-	out_8(&dev->cr, (I2C_CR_MEN));
-}
-
-int i2c_make_abort(void)
-{
-	struct fsl_i2c *dev;
-	dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
-	uchar	dummy;
-	uchar   last;
-	int     nbr_read = 0;
-	int     i = 0;
-	int	    ret = 0;
-
-	/* wait after each operation to finsh with a delay */
-	out_8(&dev->cr, (I2C_CR_MSTA));
-	udelay(DELAY_ABORT_SEQ);
-	out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
-	udelay(DELAY_ABORT_SEQ);
-	dummy = in_8(&dev->dr);
-	udelay(DELAY_ABORT_SEQ);
-	last = in_8(&dev->dr);
-	nbr_read++;
-
-	/*
-	 * do read until the last bit is 1, but stop if the full eeprom is
-	 * read.
-	 */
-	while (((last & 0x01) != 0x01) &&
-		(nbr_read < CONFIG_SYS_IVM_EEPROM_MAX_LEN)) {
-		udelay(DELAY_ABORT_SEQ);
-		last = in_8(&dev->dr);
-		nbr_read++;
-	}
-	if ((last & 0x01) != 0x01)
-		ret = -2;
-	if ((last != 0xff) || (nbr_read > 1))
-		printf("[INFO] i2c abort after %d bytes (0x%02x)\n",
-			nbr_read, last);
-	udelay(DELAY_ABORT_SEQ);
-	out_8(&dev->cr, (I2C_CR_MEN));
-	udelay(DELAY_ABORT_SEQ);
-	/* clear status reg */
-	out_8(&dev->sr, 0);
-
-	for (i = 0; i < 5; i++)
-		i2c_write_start_seq();
-	if (ret != 0)
-		printf("[ERROR] i2c abort failed after %d bytes (0x%02x)\n",
-			nbr_read, last);
-
-	return ret;
-}
 #endif
 
 /**
@@ -244,6 +183,8 @@ void i2c_init_board(void)
 	/* Now run the AbortSequence() */
 	i2c_make_abort();
 }
+#endif
+
 
 #if !defined(MACH_TYPE_KM_KIRKWOOD)
 int ethernet_present(void)
diff --git a/board/keymile/common/common.h b/board/keymile/common/common.h
index 0fb19cf..6c1f640 100644
--- a/board/keymile/common/common.h
+++ b/board/keymile/common/common.h
@@ -136,6 +136,9 @@ int fdt_get_node_and_value(void *blob,
 				char *propname,
 				void **var);
 
+#define DELAY_ABORT_SEQ		62  /* @200kHz 9 clocks = 44us, 62us is ok */
+#define DELAY_HALF_PERIOD	(500 / (CONFIG_SYS_I2C_SPEED / 1000))
+
 int i2c_soft_read_pin(void);
 int i2c_make_abort(void);
 #endif /* __KEYMILE_COMMON_H */